KTM 250 SX-F 2005, Repair Manual

Page: 56 / 125

5-11
Automatic decompression
– Remove the camshaft gear and camshaft bearing (see pages 5-10).
– Pull out the automatic decompression shaft
4
.
– Use a driver to knock out the bearing bolts
5
through the hole in
the cam.
– Remove the automatic decompression spring
6
and automatic
decompression weight
7
.
– Check all parts for damage and wear.
– Assemble in the reverse order.
– Perform a function test. The spring should turn the automatic
decompression shaft back to the stop, if not, increase the preload or
replace.
Camshafts
– Check pivot points
1
and cams
2
for wear and damage.
– Check the toothing of the camshaft
gears
3
for wear and damage.
– Replace the camshaft bearings (see
pages 5-10).
1
1
2
2
3
4
4
5
5
6
7